Lesson Plan
Curated OER

Introduction to Conic Sections

For Teachers 9th - 12th Standards
Learners slice cones and identify the different conics formed. They then derive the formula to solve problems involving cones. Pull out the TI calculators to visualize the slicing and the different parts and properties created.
Worksheet
Curated OER

Don't Fence Me In: Prisms

For Students 9th - 12th
In this prism worksheet high schoolers explore the best way to divide a rectangular region into four areas using parallel lines.  This one-page worksheet contains 1 problem.  The answer is provided.
Lesson Plan
Curated OER

Loyalists

For Teachers 9th - 12th
Students explain why some colonists remained loyal to England during the American revolution. In this social studies lesson, students write a letter to an editor about their reasons for remaining loyal to England.
Worksheet
1
1
Curated OER

Graphing Square Root and Other Radical Functions

For Students 10th - 12th Standards
In this worksheet, students graph the square root and other radical functions by examining the parent function and the translations and shifts that occur within the function family. The two page worksheet contains twelve problems. 
eBook
CK-12 Foundation

Ck 12: Interactive Geometry: 10.3 Equations of Parabolas

For Students 9th - 10th Standards
Learn about equations of parabolas.
Activity
Texas Instruments

Texas Instruments: Writing Equations of Parabolas in Vertex Form

For Teachers 9th - 10th
Students use their knowledge of the vertex form of a quadratic equation to graph parabolas, given a specific move to make.
Unit Plan
CK-12 Foundation

Ck 12: Algebra: Identification of Quadratic Models

For Students 8th
[Free Registration/Login may be required to access all resource tools.] Understanding the equations of parabolas
Handout
Interactive Mathematics

Interactive Mathematics: Find Equation of a Quadratic Function From Its Graph

For Students 9th - 10th
A detailed explanation of how to find a quadratic equation from its graph using different methods, including using software.
Unknown Type
Khan Academy

Khan Academy: Equation of a Parabola From Focus and Directrix

For Students 9th - 10th Standards
Given the focus and the directrix of a parabola, find its equation. Students receive immediate feedback and have the opportunity to try questions repeatedly, watch a video or receive hints.
Unknown Type
Khan Academy

Khan Academy: Equation of a Parabola From Focus & Directrix

For Students 9th - 10th Standards
Given the focus and the directrix of a parabola, find its equation.
Unit Plan
Government of Alberta

Learn Alberta: Math Interactives: Exploring Parabolas and Polynomial Equations

For Students 7th - 9th
This multimedia Learn Alberta math resource looks at how parabolas and polynomial equations are used to study an object's flight path. The accompanying interactive component lets students explore and make comparisons of the flight paths...
Website
Purple Math

Purplemath: Conics: Parabolas: Introduction

For Students 9th - 10th Standards
This reference material introduces the terms and equations related to parabolas in the context of conics. Also, relates concepts to previously-learned material and shows how to 'read' from the 'conics' form of the parabola equation.
Activity
Texas Instruments

Texas Instruments: Curve Fitting for a Parabola

For Teachers 9th - 10th
This is a TI-Navigator Activity Center file that is used as a class warm up or for checking understanding. Students are to contribute an equation of a parabola that will pass through the most number of sunflowers.
Website
National Council of Teachers of Mathematics

The Math Forum: Ask Dr. Math: Parabolic Equation of an Arch

For Students 9th - 10th
A student, in writing to Dr. Math, wants to know how to find the equation of the parabola of McDonald's arches. Dr. Math helps the student get started with the problem.
Website
National Council of Teachers of Mathematics

The Math Forum: Ask Dr. Math: Equation of a Parabola

For Students 9th - 10th
Dr. Math, in a reply to a student question, shows how a parabola is just a quadratic equation.
Lesson Plan
National Council of Teachers of Mathematics

The Math Forum: Exploring Parabolas

For Teachers 9th - 10th
A lesson plan using the computers to help students understand the various forms of equations of parabola. The site requires students to use the computer and offers a possible assessment of the lesson.
Unit Plan
Concord Consortium

Concord Consortium: Graphing Quadratic Equations

For Students 9th - 10th Standards
Students learn to graph the equation of a quadratic function using the coordinates of the vertex of a parabola and its x-intercepts.
Website
National Council of Teachers of Mathematics

The Math Forum: Ask Dr. Math: Equations of Conics

For Students 9th - 10th Standards
Posed with a student question about equations of conics, Dr. Math provides some insight on the standard form of parabolas, ellipses, and hyperbolas. One example is shown.
Unit Plan
Other

Algebra Class: Solving and Graphing a Quadratic Equation

For Students 9th - 10th
Math teacher provides a unit on quadratic equations in which she explains the concepts of solving and graphing quadratic equations through numerous examples and graphs. Hyperlinks are available to each step that ultimately leads to...
Website
National Council of Teachers of Mathematics

The Math Forum: Ask Dr. Math: Parabola Equation

For Students 9th - 10th Standards
Dr. Math, in a reply to a student's question, describes how to obtain the equation of a parabola.
Lesson Plan
Illustrative Mathematics

Illustrative Mathematics: G Gpe Defining Parabolas Geometrically

For Teachers 9th - 10th Standards
The purpose of this task is to show that the points on a parabola can be characterized by being equidistant from a point (the focus) and a line (the directrix). Aligns with HSG-GPE.A.2.
Handout
Other

Georgia Perimeter College: Parabolas

For Students 9th - 10th
This resource provides an examination of parabolas, both vertical and horizontal, and parabolic functions. It includes six examples and a chart showing how changes in the equation coincide with changes in the graph.
Unit Plan
University of Georgia

University of Georgia: Writing Quadratic Equations

For Students 9th - 10th Standards
In this lesson, students will learn how to find an equation of a quadratic function when given the vertex of the parabola, and how to find the equation that defines a quadratic function when given three points.
Website
National Council of Teachers of Mathematics

The Math Forum: Ask Dr. Math: Applying the Definition of a Parabola

For Students 9th - 10th
Dr. Math responds to a student question about parabolas. The student asks a series of questions about a parabola, including how to derive the formula of a parabola from the definition, a parabola is the set of all point equal distance...